Roller chafe-iron.



PATENTED JULY 14, 1903.

APPLICATION FILED MAB.

no MODEL- H 'aifi/ a/ J, 0 my W m I No. same.

NITED STATES Patented m 14,1903.

FFICE.

ALBA PARKER SMITH, JR., OF BROCKTON, MASSACHUSETTS, ASSIGNOR TOSPECIALTY MANUFACTURING COMPANY, OF BOSTON, MASSACHUSETTS,

A CORPORATION OF MAINE.

ROLLER CHAFE-IRON.

SPECIFICATION forming part of Letters Patent No. 733,513, dated July 14,1903.

Application filed March 28, 1903.

To all whom, it 777/(by concern:

Be it known that I, ALBA PARKER SMITH, Jr., of Brockton, in the countyof Plymouth and State of Massachusetts, have invented certain new anduseful Improvements in Roller Chafe-Irons, of which the following is aspecification.

Thisinvention relates to that class of chafeirons for vehicles in whichthe wearing'portion with which the wheel of the vehicle comes in contactis rotatably mounted, so that it will be in rolling contact with thewheel-tire.

The invention has for its object, first, to provide simple and effectivemeans for attaching the frame or holder in which the rotary roller oracting portion of the iron is journaled to any suitable part of acarriage, such as a reach or a brace.

The invention also has for its object to provide improved means forconnecting the roller with its holder in such manner as to insure freerotation of the roller without liability of destruction by rust, &c.,and without noise.

To these ends the invention consists in the improvements which I willnow proceed to describe and claim.

Of the accompanying drawings, Figure 1 represents a longitudinal sectionof a roller chafe-iron and its bearings embodying my invention, togetherwith a plan view of an attaching base or ear suitable for attachment tothe body portion of a wagon or carriage. Fig. 2 represents a viewsimilar to Fig. 1, omitting the springs. Fig. 3 represents a 3 5 planview of a roller chafe-iron and its holder embodying my invention, theholder being adapted for attachment to a reach or brace below a wagon orcarriage body. Fig. 4. represents an end elevation of the construction 0shown in Fig. 3. Figs. 5, 6, 7, and 8 are end elevations of theconstruction shown in Figs. 8 and 4, representing the holder attached toparts of a carriage.

The same reference characters indicate the 5 same parts in all thefigures.

In the drawings, a a represent ears formed on an attaching-plate.indicated by the reference-letter b in Figs. 1 and 2 and by thereference-letter b in Figs.

3 to 8, may be adapted for attachment to a formed by casting.

Said plate, which is Serial No.149,941. (N0 model.)

flat surface, such as the bottom of a wagon or carriage body, or to abar or rod, such as a reach or brace below the body. The plate If isadapted for application to a flat surface and has screw-holes b 12,adapted to receive attaching-screws. The ears and attachingplateare'preferably integral and made of steel by the process of drop-forging, although, if preferred, the attaching-plate b and cars a, formed asshown in Figs. 1 and 2,may be The plate 1) (shown in Figs. 3 to 8,inclusive) is provided with integral arms 5 extending in pairs from itsopposite edges, there being preferably three pairs of arms, as shown inFig. 3. These arms are made of malleable or flexible metal and arerelatively thin and preferably tapered from their inner to their outerends, as shown in Fig. 4, so that they may be readily bent around areach d, as shown in Figs. 5 and 6, or around a brace e, as shown inFigs. 7 and 8. Fig. 5 shows a reach which is square in cross-section,while Fig. 6 shows a cylindrical reach. Fig. 7 shows a brace which iscylindrical in cross-section, while Fig. 8 shows a V brace having anelliptical cross-section.

b 6 represent ears formed on the ends of the plate b, the said earshaving orifices b for the reception of attaching-screws, whose object isto prevent endwise displacement of the device. It will be seen,therefore, that provision is made for securely attaching the device to areach or brace, the arms b preventing the plate 19 and the partssupported thereby from being moved outwardly from the reach or brace,while the attaching-screws in the ears b3 prevent any endwise movement.

2' represents the rotary chafe-iron, the same being formed as a roller,so connected with the ears to a that it will be rotated freely bycontactof a wheel-tire with its periphery. The said roller is acylindrical body, preferably of iron or steel, having recesses vi 1," inits end portion, said recesses coinciding with 5 corresponding aperturesin the ears are.

j j represent cylindrical studs or trunnions, which are inserted partlyin the recesses in the roller 1 and partly in the orifices in the carsa, the said studs having conical ends -41. ears a. or to the roller t.

and being loosely connected with both the ears and the roller.

70 70 represent disks or washers of yielding material, such as leather,in contact with the ends of the studs j, one of said washers beinginterposed between the inner end of the stud and the inner end of therecess 1', while the other washer is interposed between the outer end ofthe stud and a plug m, inserted in the ear a and secured therein by apin on. The said studs are adapted to rotate loosely in the parts inwhich they are inserted, so that in case rust forms on their surfacesduring a period of disuse of the vehicle the coating of rust will beworn off by the first rotation of the roller t'. I have found that thestuds j, loosely connected both with the ears a and the roller i, aremuch less liable to be stuck or impeded by rust than would be the caseif the studs were rigidly secured either to the The washers 7c renderthe rotation of the studsj noiseless. I

As above stated, the studs j are each loosely mounted in the ears androller, thereby forming an independently-rotatable part at each end ofthe roller, said part forming the sole support for the roller.Furthermore, by we tending the openings or orifices entirely through theears the roller may be formed of a length to extend closely to the ears,the

roller being mounted by being passed between the ears, the studs, (be.,being inserted through the ends.

In Fig. 1 I show springs 0 0 in the recesses 2", said springs exertingoutward pressure on the washers k in said recesses.

I claim 1. A roller chafe-iron comprising a supporting-plate havingears, said ears containing orifices, a roller having recesses in itsends coinciding with said orifices, a stud loosely inserted in each ofsaid orifices and recesses, said studs providing independent rotatableparts which form the sole support for'the roller, washers at the ends ofthe studs, retaining-plugs in the outer portions of the orifices, andsprings located in said recesses.-

2. A roller chafe-iron comprising a supporting-plate having flexiblelaterally-extending arms adapted to extend above and below and to therear of a vehicle-bar, and having forwardly-proj ecting ears, and aroller supported in said ears, the plate being adapted to receiveattaching-screws.

In testimony whereof I have affixed my signature in presence of twowitnesses.

ALBA PARKER SMITH, JR.

\Vitnesses:

. A. O. RATIGAN,

R. BULLOCK.

